Webopedia Quick Reference: Removable Storage Reference Accessing data from a disk is not as fast as accessing data from main memory, but disks are much cheaper. And unlike RAM, disks hold on to data even when the computer is turned off. Consequently, disks are the storage medium of choice for most types of data.
Webopedia: How to Clean Common Computer Parts and Devices From dusty computer fans to fingerprints on compact discs, computer parts and devices can get awfully dirty from normal everyday use or when left sitting unused. The best way to have any computer component cleaned is to have it professionally serviced, but if you no longer have a service warranty, or if you picked up a second-hand item and want to clean it to see if it even works, here are some tips on how to clean some common items.
What You Need to Know About Motherboards You can think of the motherboard as a communications center. The purpose of the motherboard is to provide the means for all the other components and peripherals to talk to each other.
